Backend Engineer

Summary

Harmony AI is focused on reindustrializing America through AI automation for manufacturing. As a Backend Engineer, you will design and build the data layer that connects various operational systems, ensuring reliability and efficiency in real-time factory environments.

Responsibilities

• Design and build the systems that ingest and unify data from ERP, MES, QMS, PLCs, sensors, paperwork, and internal plant workflows
• Create reliable backend services, pipelines, and data models that turn fragmented factory information into one operational layer
• Build the infrastructure that powers real-time visibility, AI search, reporting, alerts, and workflow automation
• Own performance, reliability, and maintainability across production systems that operate in real customer environments
• Spend time on-site with customers to understand how plant systems actually work and where data breaks down in practice
• Work directly with operators, supervisors, planners, and leadership to structure systems around the realities of the floor
• Debug messy edge cases across machines, software, paperwork, and human workflows
• Translate real operational complexity into backend systems that are clean, usable, and durable
• Turn deployment learnings into reusable infrastructure, abstractions, and patterns across the Harmony platform
• Create adapters, connectors, and internal tooling that make future deployments faster and more reliable
• Help define the data foundations that support multiple plants, workflows, and product modules over time
• Partner closely with product, frontend, AI, and deployment teams to build systems that scale with the business

Skills

• 0–3+ years building and shipping backend or infrastructure systems with strong CS fundamentals
• Strong experience in backend development with Python, TypeScript, or similar languages
• Comfortable working across APIs, databases, services, and production infrastructure
• Able to reason clearly about data models, system design, reliability, and performance
• Excited by ambiguity, customer environments, and building in person close to the problem
• Experience building data pipelines, backend platforms, or internal infrastructure tools
• Experience integrating with complex enterprise systems or operational software
• Familiarity with industrial systems, manufacturing software, sensors, PLCs, or machine data
• Experience with cloud infrastructure, containerized systems, CI/CD, and observability
• Strong judgment on when to build something custom and when to create reusable abstractions

Qualifications

Must Haves

• 0–3+ years building and shipping backend or infrastructure systems with strong CS fundamentals
• Strong experience in backend development with Python, TypeScript, or similar languages
• Comfortable working across APIs, databases, services, and production infrastructure
• Able to reason clearly about data models, system design, reliability, and performance
• Excited by ambiguity, customer environments, and building in person close to the problem

Nice to Haves

• Experience building data pipelines, backend platforms, or internal infrastructure tools
• Experience integrating with complex enterprise systems or operational software
• Familiarity with industrial systems, manufacturing software, sensors, PLCs, or machine data
• Experience with cloud infrastructure, containerized systems, CI/CD, and observability
• Strong judgment on when to build something custom and when to create reusable abstractions

Benefits

• Free housing if deployed.
• Weekly team dinners to build connection and community.
• Gym, sauna, and cold plunge access, plus a personal trainer two times a week. HQ is in Chattanooga, TN.
• Work directly with the founders every day with full ownership.
• High-trust, high-intensity environment built on craft, speed, and impact.